WiMAX technology has four development stages: fixed access service stage, nomadic service stage, portable service stage and full mobile service stage. There are two ways to network WiMAX network: WiMAX network can be networked alone or integrated with existing network. The second method is more promising at present. On April 19, 2005, Huawei and Intel signed a cooperation agreement in Shanghai to build a telecom-grade wireless broadband network for global customers. While fixed network operators use traditional wired networks to provide voice and data access, mobile operators also provide voice and mobile data access through 2G/3G; at the same time, WiMAX provides broadband and dedicated data access services for enterprises and commercial users. It can be foreseen that the effective integration of WiMAX network and existing network will show the effect of 1+1 greater than 2. According to the mobility of the terminal, WiMAX network has fixed terminal access mode and mobile terminal access mode. The fixed terminal access mode mainly solves the group network access problem of government, office buildings, hotels, residential communities and other buildings, and can also be applied to special application scenarios such as real-time monitoring. The mobile terminal access mode mainly solves the communication requirements of users under mobile conditions such as vehicle users and outdoor users. Due to the flexibility of the mobile access mode, this method can also be widely used in integrated communication systems such as wireless digital multimedia networks, digital Olympic supporting communication systems, emergency communication systems, rescue command systems, and urban intelligent communication systems.
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